This. Basically my entire point
With Flacco you know there's a ceiling and there's a floor. So he's not gonna be bad enough to get you a top pick to actually draft a QB for the future and he's not good enough to win you a SB unless you an elite roster, which the Colts are not even close to having right now.
At least with Richardson, best case scenario, he figures it out and becomes a star. Worst case scenario, he continues to suck and you bottom out and you get a chance to draft your next future QB. Middle case, he's "okay", but at least with that, you can still build on that for the future and hope he still becomes a top line QB or trade him to a team and get some draft capital that you may can package to draft your QB down the line.
I'm just struggling to see the benefit of having Flacco be QB1 for a team like the Colts. If you just want to be respectable but not a serious threat at a ring, then hey, cool I guess.