This is actually baffling, reducing flights which have higher frequencies in June and July during the peak travel month of the year? No doubt due to Ryanair demanding lower fee's and throwing their toys out of the pram as per usual.
FR have being going down this road over the last 2 or 3 years. Take DUB:
Busiest month is June, reduction in July - very large amount of traffic is to sun spots of Eastern Europe in June. Reduces in July and turns more to inbound markets. All reduces in August/September. Most people get out in June/July and return more gradually during July/August/September. FR are unlike Aer Lingus who can maintain a constent schedule and profit at the same time.