Don't get him wrong, it was not that Hal particularly condemned what she did because he didn't, he was just saying it as it was.
Those that she had refined had done nothing against her but they suffered all the same.
It was the reality of a world where the strong ruled and those that called such practices evil in such a world and then condemned it were usually hypocrites attempting to look flawless for the public.
That said, he did appreciate Arya's tenacity.
Not to mention that she had been doing her ritualistic tour for over Two hundred years and had formed a lot of connections along the way.
After all, being the 'Master' was an alter ego and she was still quite a capable Alchemist who was bound to be respected.
Hal knew she had a lot of acquaintances that could help him along the way and he liked having that in his reach.
Anyway,