His remarks add a senior voice to growing frustration within ODM over a disciplinary process that many members feel has been misused.
The expulsions, which have affected several party members in recent months, were officially justified on grounds of conduct harmful to the party.
However, a number of those affected and their allies maintain that the process has been selectively applied, targeting individuals perceived as insufficiently loyal to those currently wielding influence within the party structures.
Oparanya's concern is firmly grounded in the political calendar. With 2027 closing in, ODM cannot afford to have its leaders distracted by internal battles when the real contest lies ahead. Campaigns need time, energy, and a united front.
A party spending its bandwidth managing expulsion fallout is a party not doing the work that wins elections.
ODM has historically been one of Kenya's most organised opposition outfits, drawing consistent support from Nyanza, parts of Western Kenya, and the Coast.
That support base did not come easily, and it will not hold without active and committed leadership on the ground.
Every leader pushed out or silenced is a gap in that network that opponents will be quick to exploit.
The party's ability to mount a credible 2027 campaign will depend in large part on whether it can present a united and motivated structure to the electorate. Voters watch how parties treat their own members.
A party that is seen as intolerant of internal debate sends a message that goes beyond its membership and reaches the broader public it is trying to persuade.