Why penalities to change stances?

[Dzian]

the 'stay in tank stance' thing makes 0 sense for me. Paladins Oath Gauge fills 10x faster in sword oath than shield oath and it makes me ?? because Sheltron, a skill you use as mt, is more reliably available in dmg stance than in tank stance

Not at 70. At 70 you can fill the oath gauge from 0-100 in a little over 10 seconds in shield oath.

Every holy spirit cast is 20 oath gauge. You can typically build oath fast enough to hit shelltron 4 times in 30 seconds if you need it that often.