A little more longevity and one more engine restart, unless the suborbital is very suborbital, then it also means a lot more delta v. It doesn't seem that far away at all.
I appreciate none of that is as pithy as saying it simply didn't reach orbit, but it's a real concern versus something that is really irrelevant.
No one (at least not me or anyone I take seriously) is arguing whether or not these suborbital profiles are designed to be safe even under adverse or full failure conditions; though the Caribbean air corridors might have been managed a bit more gracefully on some previous flights... still...
Nonetheless there is a valid criticism that in ten flights they still haven't mastered keeping the control surfaces of the space craft whole during the reentry phase of flight. 1500 miles isn't going to cut it as a safe return zone when they try bring this in for a catch. While I'm as impressed as anyone that they've hit the mark with compromised Ships as many times as they have, neither Port Isabel nor Titusville are 1500 miles from their nearest Ship catch towers and I wouldn't support any attempts for a catch until they can get the whole Ship back in good working order... reliably. While I'm a advocate for this program and SpaceX... I'm not such a fanboy that I can't see there are issues with this aspect of the program. This is ignoring the impact on rapid reusability and simply focusing on the basic safety of the program.
But they haven't tried to catch Starship yet and likely won't for a while, so you're arguing a silly hypothetical.