I think you have hit the nail on the head as it were.
Wells19 has the imagination to conceive of things but not the skills to make things. He is a writer and that is fine because now Cisco and Caitlin and Barry can step it up and show that they can handle things without a Wells of any kind.
Also having a Wells around that goes out in public is a bad idea, as Wells is still considered the killer of Nora Allen, unless Flashpoint has undone that.
Also we need to get the rest of Wells2 interrupted warning before he was zapped back home.
I still think Wells19 has an agenda we haven't seen yet. For all we know he has told a pack of lies and really IS a brilliant scientist and is feigning ignorance.
Also, Barry seeking an apartment and living with Cisco in the meantime, okay that is a logic error. Barry owns Star Labs unless Flashpoint retconned that away too. Star Labs is a big place and Wells 2 and Jesse lived there so.....why isn't Wells19 and Barry living at Star Labs? Separate rooms of course.
Because Barry spends enough time at Star Labs? I wouldn't want to live at my second office. There is no amount of decorating that could make that place 'homey". Barry isn't an Earth 1 visitor like Wells2 and Jesse; nor is he a wanted man like Wells ( if flashpoint hasn't changed him being guilty for Nora Allen's death as you stated).
But I do agree living with Cisco is a logic error. As the Flash, surely he's seen enough places to live. How long was he living at home? I would hope he saved enough to rent a decent place. Can't wait to see the breaking point between Barry and Cisco when they decide living together is too much.
Still trying to figure out how Cisco and Caitlin can afford to live anywhere. What does Star Labs make anymore? Aren't there contracts expired? Cisco's salary from the CPD's Anti-Crime Unit can't be that much. Did Ronnie leave Caitlin $$ from his will?