My partner has pushed me up the hill just before we reach home a couple of times... its about 11% grade...
I was so grateful too - it meant I didn't have to get off and rest, half way up,(or, as when I first tried, getting off and walking)
When he gave me a push, I viewed it as no more than drafting
Drafting enables me to go faster than I can on my own
Getting a push helped me to climb all the way up that bit of hill WITHOUT getting off... a HUGE psycological boost