Agree with most of these points.
Pets should be a small bonus addition to gameplay, not something you build your game around.
Bloodveld pet actually isn't as strong as people think, in the best scenario the bleed effect is only boosting your DPS by around 5%. And the grind is easy but its definitely not a short one, Vanstrom kills are not quick unless you have good gear, with the average droprate being around 1/600.
I personally would like to see less overwhelming DPS perks added to pets (Nerf Doom pet), and instead add more niche perks (Gauntlet, Inferno, Kalphite perks), Because then grinding specific pets become more valuable, instead of just spending 10bill to get a pet that's BIS almost everywhere (again nerf doom pet).