Rock vs Mina is 6/4 in Rock's favor.
The problem lies with Mina in this matchup is her inability to deal with bullrush adequately. She also lacks strong TC to thwart throws, so she's left with attempting to break/duck throws, or gamble any of her unsafe TCs which Rock punishes effortlessly. His bulrush nullifies her spacing game to a large extent, and 6K is troublesome for her as she can only punish with K reliably. Rock's 6B+K is strong as well vs her, cuz she cannot punish it HARD like other characters can. Her step is also a bit small to 'lucky' step bullrush either. She has absolutely no advantages in this matchup. Rock deals with her quite comfortably and yes he still bullies her.
22A is high, and Rock uses bullrush and 6K often
2A is very linear although it's horizontal
AA is duckable double high and slow (ps u can't hit confirm first A and do 2nd)
66A is ok, but then Rock is in throw range when he blocks, and autoGIs won't save u
3A is only good at tip range, and when it's blocked u are again in throw range. On shallow block, it's terribly unsafe.
4A for spacing, vs bullrush and 6B+K, isn't in her favor in the slightest, she gets what 12-18 dmg?
6B+K is duckable double high = death, only useful for punishment
3A+B = death on block, and it's blockable on reaction. Not very fast. Everything is guaranteed on block.
FC 1KK = same issue
6AK lacks range, and the high K is problematic vs TCing bullrush. Pitiful damage.
In wakeup vs Rock, 9K is a gamble for pitiful damage. In almost every knockdown situation, 3B is uninterruptable for example. You may get away one or twice with it, but then what.
Runis:
Rock easily gets 2G+B -> 9B-> 6B+K vs hilde. He may not get B+K, but 9B is by far stronger anyway, common knowledge for Rock players i hope. If she JUkemi's after, he gets crouch throw tech trap. This is an even matchup. Rock will muscle through with bullrush, and she can't rely on her doom combo here. He has it far better than other characters.