front wheel takes more impact than rear?
It's more likely a combination of the front wheel hitting before you had time to react properly and unweight it, and you also probably pushed down on the handlebars to shift your body back ready to do that. Even just the first could have been enough to pinch flat your tyre.

There's a whole lot of more factors, from the size and pressure of your tyres, what suspension (if any) you have, how you sit on the bike, how fast you were going and so on.

Mountain bikes have different travel balances depending on their purpose, and riding style can make a huge difference to what makes sense or what's desirable in terms of suspension travel. One factor is that it's simply easier to build a bike with huge travel in the front suspension and much harder to get the same at the back. There have been a few MTBs with an intermediate drive, for example, that runs up to a cog on the suspension pivot, allowing them tom have a longer rear swingarm and hence more travel. But if you want more travel on a front fork you just lift the headset up and have longer sliders. It's not quite that easy, but it's easier than doing the same at the back.