Fork isn't hardfork alone so we need to include softfork as another type of Forks. Thismay possibly avoid future misunderstanding about Forks.
This is one of the ways at worst that could happen to users coins who invested in Bitcoin, right now. No need for fear of loss of the coins you invested or intend to invest.
I agree that the current event about network congestion is the sign that the Bitcoin Network needs an improvement. Bitcoin does not necessarily need to do a hardfork in order to solve the problem, I believe it just need some softfork to implement upgrades and updates. It may cause a split if there is enough numbers of miners opposing the said soft fork just like what happen during the segwit upgrade.
Noted but in curiosity, can you find errors on the article linked using Changelly as reference? You advice pique my curiosity so I wanted to know which terms on that article is misleading.
I think there is both pros and cons of these two forks and I believe hardforks is done when there is nothing else to do to preserve the network (the last resort) due to attack, bugs or glitches discovered on the chain.