“How are you finding it?” is an English colloquialism and means “tell us about your experience of this thing”. He’s asking what it’s been like for you fighting carapace.
Anyway, on subject.
Some don’t like Tauren Paladins because they don’t fit the stereotypical D&D mould for the classic Paladin. They don’t fit the Warcraft human paladin tradition, either, and some feel they were shoehorned into the game to balance the factions a bit which yeah, is valid. But it’s also Blizzard’s game and if they want to expand on or change the lore, they can, regardless of what others may think.
It’s also worth pointing out that, for story purposes, they are technically not “Paladins”, they are Sunwalkers - martial warriors who worship the sun and use its powers to fight evil and restore health, rather than worshipping the moon and nature like their more Druidic brethren. The powers work very similarly to that of Paladins, though, and obstensibly are the same, although from a source other than the “light”, hence why they were allowed to join the Paladin class hall in Legion.
Sunwalkers came about because after the fall of the Lich King, Aponi Brightmane, who was a warrior, was talking with Tahu Sagewind, a druid, and came to the revelation the tauren druids worshipped the moon because that’s what the night elves did, but above all else tauren worship the earth mother and the earth mother has two eyes: the sun and the moon.
They realised that the tauren had neglected to worship the sun in the same way they had the moon and to truly balance nature, as druids strive to do, they had to balance their worship.
By balancing their worship, they were granted access to special powers which made them Sunwalkers and Seers.
For gameplay purposes, the Sunwalkers, led by Aponi, are Paladins and the Seers, led by Tahu, are priests with the exact same spell names and animations because Blizzard are lazy and don’t do race/class specific versions of things very often.
They do have one Sunwalker themed spell, though: Light of Dawn. What happens at dawn? The sun comes out. 