Bitcoin should seriously consider if these delays in implementing scaling solutions, will serve them well in the future. Other payment gateways and alternative payment solutions, will not wait for them.
Bitcoin is not a payment system. It is a speculative gamble token, that people buy to sell to a greater fool mostly.
Apart from some geeks, and apart from dark markets where it becomes dangerous, nobody uses bitcoin seriously as a payment system on any large scale. It is too unreliable, risky, and the volatility is making it impossible to write serious contracts in.
For casual value transfers that cannot see the daylight, and for the moment still for things where you want privacy, it is a clumsy payment option, yes. But where bitcoin has been used mostly, and constantly, during the last 8 years, is in pure speculation in greater fool games, also known as trading.
Bitcoin is a trader asset. Not a payment system. But if you really want to, and you really have a good reason, with some effort you can also pay with it.