You're right, he was visible after that, but they don't explain it either.

And put Wally in?

Maybe healing powers only accelerate what would be healed in the normal course? Like it wouldn't help if straight-up decapitated, right? So if one were injured in a way that would paralyze one under normal circumstances rather than just take longer to heal than for a speedster, it would make sense that healing faster…

When did Savitar become visible to non-speedsters? Is that something he can turn on and off?

Yeah I think that making Savitar such a solipsistic villain didn't help. Even in the previous seasons part of the villains' motivations was to use villains to power Barry up for their own purposes, Savitar just hasn't done much since ages ago.

In a way, if they had kept Patty around and developed that relationship, they could have had their cake (emotional weight) and eaten it too (save Barry-Iris for a later season).

Like the SNL sketch (featuring the Rock) where everyone knows that Clark is Superman?

Alternatively, they could've cut the fat, made this and last season one season, and other than Thawne reprises, been done with speedster villains (or at least big bads) for good.

Abra Kadabra's reasoning in the last episode along those lines was a highlight of the episode for me.

Point taken regarding the specific effect of her using her powers, but they have had characters whose powers had side effects before (like the guy who aged when he used his powers, which was at least as much a non sequitur).

I'm drawing from Harry's description of time remnants in "The Reverse Flash Returns.," where he explains that "this Thawne" hasn't gone back to kill Nora yet (i.e., this Thawne is one with the Thawne who later kills Nora and exist along a single timeline that has been "kept intact," rather than being only the…

I went back and looked at some scripts. Based on what I saw, it appears that they're trying to have it both ways. They do say that this Thawne got plucked after Flashpoint. But as you also note, that doesn't make sense of other things that they've explicitly established, such as:

I think that once the aberrations showed up (establishing for Mick whose side he should be on and preventing the blame game that led to the betrayal) it indirectly baked in a lot of that development.

How do things like Stein's time aberration daughter fit into this?

See, I don't think that Thawne pre-Nora is fully erased from the timeline, so we can still go back to Flash Season 2 time remnant Thawne.

Malcolm and Darhk seemed a bit upset about the destruction of the spear last episode. A "the enemy of my enemy is my friend" team-up might have been interesting, though I did enjoy this episode.

Maybe Sara could have altered reality to get rid of the time storms while she was at it? (Or maybe not, if Thawne couldn't use it to get rid of the Black Flash. The rules of this all-powerful spear were poorly defined.)

I think that if this season and last were a single season arc with Barry having to learn his lesson about time travel—in both directions (past with Zoom, future with Savitar)—with all the filler cut out (for starters, King Shark, Iris's new boss, Trajectory, Patty unless they used her as the love interest and let…

If the characters were written and depicted consistently in-universe as being much slower than peak comics Wally West, it could work (much like the reverse of Fox Quicksilver being much faster than most comics iterations). (Phasing, time travel, speed mirages, etc. would still be explained as Speed Force.)

I think that the time travel rules in the Arrowverse are an inconsistent mess, but I think that this is way over-reading what they've actually established about how time remnants, aberrations, wraiths, and Black Flash Flash and the like are supposed to work.