Raiding Consumables

Thought I'd drop two suggestions I thought of recently.

Can we get consumable buffs to stack please? If I have 5 minutes left on my 30 minute food and the boss takes 10 minutes to beat I have to use another food. Why can't the new food add +30 minutes onto my existing timer, for a total of 35 minutes, instead of reset it?

Also, when tinkering with the golem in the raiding practice area why not make food buffs permanent for the duration of your stay. Make us use 1 to practice, but not multiple. Could be as easy as adding a Metabolic & Utility Primer to all players upon entering the zone for practice. Since there are no rewards for this area I don't see the problem with this.

Thank you!