I agree here. If you're flying a mix of business and leisure it's not too bad. If you have a weekend trip where plans change then you can find another weekend with low fares quite easily. I had the case where a change cost me about 10£ whereas it would have been 150£ otherwise with admin fees.
On some routes easyjet walk-up fares can remain quite competitive, so it's not a bad thing to know you can reschedule without paying those admin fees.
one draw back is that you have to call them and they are 'only' open 0800 - 2000.
online changes with the same savings would be much more helpful