magsafe is not even close, wireless charging has terrible efficiency. Honestly the whole idea "wireless powerbank" is ridiculous. You are in need of energy; would you like to waste extra energy as heat?
The way it is currently yes. But hardware is way more efficient now. Why not sacrifice performance and optimize a bit more in that direction? It is plenty fast already for everyday life. I don’t like that we only focus on performance and we don’t see longer battery life that we could have based on advances in battery technology + more efficient processors.
It's not going to last you all week though. That's not going to just be thick, it's going to be a cube heavy enough to double up as a weapon.