I wouldn't agree with that. If they freeze coins, and there are different reports that they do, I wouldn't call them good or better than some other services that also freeze coins. They are equally bad and dangerous. In fact, maybe even worse if people mention them as quality alternatives. I am glad you didn't have issues with your deposits, but that can all change with the next one.
Hyperliquid can't be compared to eXch. Both were custodial, that's true. But eXch didn't confiscate anything and didn't play ball with governments and regulators and their ridiculous notion of taint and dirty crypto.
There is no way you can convert or exchange your bitcoin without losing the custody of your coins. Even BISQ has some kind of trust involved.
I think the problem with such an idealist vision is that the way you put it there is no alternative. You just condemn everything and everyone, and you put the good and the bad in the same basket. Ofc hyperlliquid is not equally dangerous as binance or changelly, for example. You can send coins with high AML and no questions will be asked, and no funds will be frozen.
I did a little research, and the only frozen funds related to hyperliquid I found were related to some shitcoin exploit/hack. Maybe you can find something about frozen btc in different situations (which I didn't), but it is highly unlikely that they will freeze funds using policies similar to Binance, Changelly, or other common swap services.
They will probably have to change their policies in the future, as it was already suggested by LoyceV in past, that services like that get too much attention and get seized or they start playing by "the rules". But that is not the case yet.