Obviously I wasn't there, so I have no idea what went on in that apartment. I also don't know how many other people were there, how many have been talked to, etc. This could be completely justified or total BS. I have no way to know for sure.
If it is really that they are punishing players who were there just because they were there (as Mr. Buford stated), that is beyond overzealous and should not be done. Heck, I was at a party back in college where someone took a dump on a chair while I was in the same building (different room obviously) and I didn't find out about it until the next day. If I'm in one room and something is happening in one of the bedrooms, how am I supposed to know what's going on?
Now, if these players were covering up evidence, interfering with the investigation, actively prevented people from intervening if she really was incapacitated, etc., then by all means they should be suspended at the least.
It just seems like the U is so desperate to appear holier than any other school that they are overly punitive on these investigations. But again, I don't have all the info, so maybe they are much more lax than I think. I'm sure most Baylor fans didn't think Baylor was covering up the accusations they were...