Really struggling to see the hate in this. If you want to ride with a pack crack on no one is stopping you.
If you prefer to not ride with a pack here is a solution to carrying a multi tool.
I have the one up EDC there is a tube strapped to my bike and the pump lives there all the time. Means that all I have to grab is the water bottle and away I go. I used to take a pack and still do on longer rides where you need more food jackets etc, but as the majority of my rides are sub 2 hours there is no need.
At the end of the day I prefer riding without a pack bouncing around all over the place, it just feels better. Others disagree hence why they are happy with their bags, end of.