Yeah you're right, but it's getting ridiculous now!
The SEC made it an issue with the 25 signing limit. They had 28, which kind of made sense, but by dropping it to even with the scholarship limit they placed a premium on using them up.
So, you might be like why does A&M want to use up every single one they have available? The answer is simple, they can't sign 26 the following season! They only get to use 25 a year, and all they are doing is counting some for one year and some for the other. But, the rule says you only sign 25, not 25 academically qualify, or 25 don't sign an MLB contract. Each guy that doesn't make it on campus is like a lost scholarship, which wasn't as big a deal when the signing limit and scholarship limit wasn't identical. So, because these SEC teams can't save those spots for next year, which used to happen sometimes, it's use it or lose it now.