That´s true for any kind of battery, including mobile phones, laptops, handtools, etc. the fastest you charge a battery the less cycles it will charge. But people is so obsesed with recharging times it´s become the flagship of marketing campaigns for anything electric
But getting used to some routines it´s not necessary at all. For example I always charge my phone with the charger of my previous phone wich has an output of 0,7A. I only use its own charger (2A) when in a hurry, wich has been around 5 times in 2 years of use. My battery is still in perfect condition. My last phone battery with similar cares (usually charged at the pc at around 0,3-0,5A, as the battery was smaller) lasted the 4 years I used that phone in perfect condition too. For EV it should be the same, night charging at low rates is enough, no need to put dozens of kW to charge a car, just get used to connect it when you arrive home, even if the battery is not empty yet
Charging rates are one of the main factors, if not the most important, in any battery life. Other is battery use, I always try to keep it between 30 and 80% to improve battery life. Obviously when needed I fully charge it and use it to 0%, it will not explode nor crack or fail, but everytime you can avoid fully charging or fully discharging a lithium battery you´re increasing the number of cycles it will last. Or to be more precise, you´re not reducing it as you do when fast charging or using the whole capacity
. These were the instructions:
And so much more rewarding than an ev where you just flex your right ankle to get the same effect 
Or sketchy at best, but we're in limbo aren't we. This is how Greta got across the Atlantic when they moved the climate conference from Chile to Spain. With no fossil fuel! Or hardly any, Two awesome globe-sailing Aussies! It's a great channel generally