Can you activate abilities (specifically Standard Move) on your teammate's turn in 2v2?

Ruling: The rules appear contradictory - one rule mentions teammates can activate abilities during the turn player's turn, but other rules only mention playing spells. Standard Move specifically may still be restricted even if other abilities are allowed, due to its strict timing requirements.

Nuances:

• Rule 316.2.b.1 states teammates may activate abilities including ones without Action or Reaction
• Rules 316.2.c and 462.8.a only mention playing spells, not activating abilities
• Standard Move has particularly strict timing restrictions that may prevent it even if other abilities are allowed
• This appears to need clarification or errata