I can at least answer the latter with a yes
As well as being signed by the games talent, the Brave Little Tailor card was also graded at a perfect Gem Mint 10 condition by PSA, boosting its value even further
Its an endless army in a can for Aggro or Aristocrats decks, in a similar vein to Bitterblossom
Theres no extra power boost, or advantage to having an enchanted card in play but it will undoubtedly make you look twice as cool
Competitive play is a huge part of any TCG, and if a dud of a set were to release right as the biggest event in the game was due to take place for the first time, we could be talking about a very different trajectory for the game
This is because Limited is full of creatures, and the removal that exists tends to be clunky (even good ones like Sephiroth's Intervention cost 4 mana)