I never know how to react when someone adds something to a debate (something which is off topic) only to use it later like a tool.
Do you want me to say anything?
We weren’t talking about Standard sets. You only slipped that word in there at some point during the debate and I chose to ignore it since we were talking about lands that should be legendary and not Standard lands that should be legendary.
Here:
https://riptidelab.com/forum/threads/eld-throne-of-eldraine.2033/page-13#post-85004
As a conclusion:
But alas. As it turns out, the rule is something that is on and off depending on who the customer for a certain set is. Heliod is going to Commander players so they can easily make it legendary without hurting sales and Ardenvale is for Standard players and here it will hurt the sales. Wizards has a built in design flaw now.
But not wanting legendary lands in standard
is completely relevant as to why the castles from this set aren't legends. Hall of
Heliod's Generosity is both a card that is a callback to something older and not something that's ever going to be a part of a standard mana base. Therefore, it is easier for Wizards to make a legendary land without causing headaches for 90% of their high-profile tournament events, mainly Mythic Champions. If, say,
Castle Vantress, that could lead to some non-games in their perceived money-making format at their events with the most eyes on them. There have been a lot of lands over the years that represent specific locations that aren't legendary, the most high-profile of them being
Valakut, The Molten Pinnacle. This has been going back to at least original Ravnica block, with the Guild Hall lands not being legends. They've been doing this for years, it's just that they finally decided to choose a standard for, well, standard.
Legendary Lands are bad for competitive gameplay so the only time it's appropriate to make a land a legendary is when it isn't for constructed or for when it needs a drawback. The castles were specifically made to go into Mono-Color Standard decks. That's literally the reason why they're not legendary, and that's probably correct. Gameplay trumps flavor.