depends on the amount of heat created. I'm not intimately familiar with these batteries to know how much heat is created. Slower charging is better as it creates lower heat levels but I'm sure some of the newer batteries that are meant to be fast-charged have technology that accounts for it. Heat is what kills batteries, not cold.
Panasonic has an Eco Mode on their laptops that charges them to 80% and holds there. The reason is that the last 20% creates the most heat. The last 20% can be charged in less than 30 minutes. Using this makes a HUGE Difference. I have a 2007 laptop that still lasts 8hrs on the original battery because of this. Most laptop batteries don't last that long.
Even Maha batteries for my rechargeable system suggest using low and slow charging. Not only is it better for the battery life but you'll get a deeper longer lasting charge.
Not that any of the above matters here, but worth knowing. Personally, I keep my Note 3 on a charger base when in my office as I'm usually streaming, using the hot-spot, etc. and have had no issues.
In the end, you won't likely keep the phone beyond its battery life anyway thus why I really don't care much about removable batteries on cell phones.