Why do you think Lucas is so bad? He can't use his braindead pressure anymore and he can't autopilot his neutral either. That doesn't make him bad, he's still amazing. He still has a VERY high skill ceiling. He only really loses a handful of matchups, and he has great tools to make it so the matchups he does lose aren't even that bad.
His approach, despite a number of options to choose from, are all average. PKF & Fair lost their range since 3.0, which were HUGE factors in many match ups. Neither are really safe anymore. You can basically just shield for free against Lucas now. Before, he would pressure you into an option like going into shield / the air by PKF, then capitalize. If you auto-pilot neutral with Lucas, the enemy should be able to move around PKF thru power shields and clanks, then punish mis-spaced magnet / aerial approaches.
His TECH skill ceiling is very high (nowhere near 3.0 however), but his actual skill ceiling isn't as high as you'd think.
As for his matchups, I agree that he has a good MU spread; however, he has to work incredibly hard to get something started, while the opponent can out-zone Lucas.
The only bad thing about Lucas are his bad defensive options, which just means you need to be smart to get out of bad situations. His bad defensive options aren't even that bad, you have either a frame 4 nair oos or a neutral-b that's active on frame 2 as a get off me move. To get from ledge -> stage you can ledge jump magnet and it's invincible the whole time, at high percent you have to *gasp* actually mixup up your options to get back on stage. He has a bad tech roll, sure, but that's not the end of the world, every character has their weaknesses. He also has a top tier aggression game to make up for it.
You don't need to recite stuff that I've already found myself. I know the frame data on his moves & all of his tech. I wrote a ****ing guide on the character.
His magnet is only fully invincible until you jump out of it if you frame perfect jump from ledge under 100%. Every other option at the ledge is incredibly slow and predictable. His roll off the ledge is the slowest roll & doesn't even have invincibility for half the duration.
As for his tech roll, it's a major issue being that he's a lightweight fast-faller. This means he gets tech chased easily because he gets knocked down a lot more. After they tack on enough damage, he gets thrown off stage to be easily ledge guarded, or dies easily to a followup.
His OU charge attack has terrible range and is almost never useable as an escape option. Nair also has the same issue. If you're being combo'd, you have to hold the analog stick in neutral, which means you won't have good DI if they decide to hit you with a powerful attack mid-combo.
Lucas is only good once he gets in and is comboing the opponent. His punish game is the best, but everything else is easily punished or avoided.