The question is, WHY do you need to compare what ARK is doing to what Comit is doing? Is your investment strategy to go all in on one project and flip it?
If you are not smart enough to know that interoperability is the future of blockchains, you really need to get out of this industry.
Take a chill pill and relax. When it comes to technologies and cryptocurrencies in general, you should always compare and try to come up with a reason as to whom and why you should invest. If you don't then just throw your money out the window because that's how people lose money investing and trading.
You asked how can I expect people to compare projects. I compare project and if you don't realize this, new flash...others do the same. Each company and/or technology has a vision to what it is trying to accomplish. ARK Smartbridge and the COMIT protocol might have similarities but they are different. What's the point of having exact same product that does the exact same thing? The way these goals are reached are different you're right, but that difference can make it or break it for the company.
I will continue to compare technologies and how I choose to invest is really none of your concern.
Fyi, you can't see the future therefore you can't say interoperability is the future of blockchains. It may be only one of many reasons as to why blockchains will get mass adoption in the future.