One view may indeed excuse weakness and the other may indeed give hope to reach for a higher option.
This would give us an emotional reason to want to believe one view over and above the other (if we desire to have victory over sin); however, having an emotional reason to believe something is not reason enough to believe in it; I want to believe in something because it is true.
There are four scripture passages that I am aware of that speak of Jesus' sinless nature (2 Corinthians 5:21, Hebrews 4:15, 1 Peter 2:22, and 1 John 3:5).
Yes, Jesus was sinless yet he has the inheritance of Adam after he sinned, of Abraham, of David etc.....his genealogy at the start of Matthew is there for all to see.
There is no need to interpret his sinlessness because he was conceived by the Spirit saying he had an advantage that we don't, that would make him out of reach for us unless of course you have had a new birth. A new birth gives the same spirit as Jesus has. Without a new birth you're paddling against a current far too formidable.
No my friend, he got tempted by the lusts of the flesh far more than we ever have, you know, those attractions that stressed him when he hadn't eaten in the desert for six weeks were so debilitating he had angels minister to him afterwards. And have you ever thought about him being tempted by sex? you better believe that the devil didn't overlook that one in his arsenal and the drops of blood that he sweated in Gethsemane as he wrestled with choices but he overcame because he trusted in his Father and he calls for us to do the same. Repeatedly he tells us in Revelation 'he who overcomes will sit with me on my throne just as I overcame am seated on my Fathers throne.
God cannot be tempted the scripture tells us. If Jesus had not lowered himself taking on our fallen nature he would have shrugged off those temptations, nay, they would not even have been temptations.
He tells us what the standard is...be perfect as my Father in Heaven is perfect. Yes, no sin. He tells the rich young ruler, keep the commandments when he was asked how the inherit eternal life. How many of them? all of them. The message is the same from the prophets and the apostles. Do we think that Elijah got to Heaven in a chariot by excusing sin because he had a fallen nature?
Now, don't confuse our fallen nature with the idea that we can not stop sining. If that were the case, all the exhortations and encouragements to put sin behind us would be useless
We are to breath the atmosphere of heaven here so that our witness is exemplary.
Of course there will always be those who confuse obeying God with working our way to heaven. I would say they have a glitch in their comprehension program. And why do they have that glitch? quiet simply because they love their sins and don't want to give then up.
One can talk of Jesus piously just like the Jews spoke of God piously but that does not qualify for entry into the Kingdom of Heaven. Our works reflect our faith....that is the litmus test.