The deobandies criticized jamat e islami for obvious reasons.First, this dissenting school of thought emerged with in them and it effected its own people mostly.The Ikhwani movement did not have any impact as such on the deobandi school and their manpower. Whenever a school of thought is more prevalent as widespread,standing of the same Aqeedah and furu, difference of opinion and approach arise as the scholars are human beings who can think and act to the different ongoing stimuli in the world. Just for example, Ahsan Ul uloom and Ashraf ul madaris lie almost wall to wall ,both are deobandi institutes but Mufti zarwali khan Hifzahullah's views about Ashraf ul madaris are known to everyone who has been near to him.Mufti zarawai hifazahullah views about tablighi jamat and Tariq jameel hifzahullah are also on the record. The discord which occured inbetween Dar ul uloom karachi and other deobandi madaris during the peak of " Meezan bank rumble" is also well known. Then if u pick the digest of Sipah e sahaba, they severely criticized Moulana tariq jameel hifzahullah for some of his statements a few months back. So it happens everywhere but still its just a difference of opinion and those who dissent, do it with a good intention. I think it should be referred to as ijtihadi Ikhtilaf.